CA1800 Charge Amplifier System The CA1800 Charge Amplifier System conditions and amplifies charge-mode accelerometer signals. It is a rugged, rackmountable instrument designed to be used engine test cell control rooms and other environments where charge-mode accelerometers are used to measure machinery vibration. The CA1800 Charge Amplifier System provides up to eight (8) channels of charge amplification. Each charge amplifier provides a buffered acceleration output signal as well as an integrated (velocity) signal output. Outputs may be configured for either differential or singled ended configurations, and each channel may be configured (at the MTI Instruments factory) for one of three different gain settings to match accelerometer sensitivities. INPUTS Differential Input Input Connection Input Impedance Maximum Input Charge CONFIGURATION OPTIONS Static discharge protected Differential with shield connected to case, MS3101E-10SL-3P 10Ω maximum 16,000 pC pk, maximum OUTPUTS - Outputs are normally differential, factory option single ended Velocity Output Acceleration Output (buffered) Output Impedance Capacitance Load DC Output Bias Linear Output Voltage Output Current Linearity Residual Noise (RTD) Rear Panel BNC female connector Front Panel BNC female connector 10Ω maximum 0.1µF maximum 0 Vdc 17Vpk-pk max 25 mA maximum 2% 1.0 mV RMS maximum at gain =1, 4.0 mV RMS max at gain = 10. Number of Channels: Channel gain settings: Highpass filer options: Outputs (ACC & VEL): 4, 6, 8 1, 4, 10 mV/pC 10, 15, 20, 25 Hz Differential or Single Ended POWER REQUIREMENTS AC Power Requirements Warm up Time 110/240 VAC ±15%, 50 - 400 Hz 5 minutes PHYSICAL CHARACTERISTICS Dimensions Weight Case Material 3.5” h X 19” w X 13” d 11.7 lbs Aluminum 325 Washington Avenue Extension Albany, NY 12205 USA